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pfSense on an 82599 (X520 clone) cannot negotiate 2.5G with an SFP+ RJ45 module to a cable modem
A pfSense router on a Supermicro R210 II with an AOC-STGN-i2S (82599-based X520 clone) was connected throguh an FS.com SFP+-to-RJ45 module to a cable modem with a 2.5 Gbps port. No link negotiation happened; pfSense offered only auto and 10G speeds and never 2.5G. Hardware involved: Supermicro…
